/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.table.runtime.dataview;

import org.apache.flink.annotation.Internal;
import org.apache.flink.table.api.dataview.DataView;
import org.apache.flink.table.types.DataType;

import java.io.Serializable;

/** Information about a {@link DataView} stored in state. */
@Internal
public abstract class DataViewSpec implements Serializable {

    private static final long serialVersionUID = 1L;

    private final String stateId;

    private final int fieldIndex;

    private final DataType dataType;

    DataViewSpec(String stateId, int fieldIndex, DataType dataType) {
        this.stateId = stateId;
        this.fieldIndex = fieldIndex;
        this.dataType = dataType;
    }

    public String getStateId() {
        return stateId;
    }

    public int getFieldIndex() {
        return fieldIndex;
    }

    public DataType getDataType() {
        return dataType;
    }
}
